TED-Ed: How we see color - Colm Kelleher

The video explains how the color of an object is related to the frequency of light waves it reflects, with high-frequency waves appearing violet and low-frequency waves appearing red. It delves into the concept of physical color and how human perception of color is influenced by biology, particularly the retina's rods and cones. The video describes how the brain interprets signals from cone cells to perceive colors, even when different light frequencies mix. It also covers how rod cells function in low-light conditions, limiting color detection. Finally, it highlights the practical application of this understanding in TV manufacturing, where only three colors are needed to simulate a wide range of colors.

How does the brain interpret signals from red and green cones when yellow light is present?

Why can't humans detect colors in low-light conditions?